diff --git a/src/ship/location.rs b/src/ship/location.rs
index a852dce..35a60a4 100644
--- a/src/ship/location.rs
+++ b/src/ship/location.rs
@@ -192,7 +192,7 @@ impl ClientLocation {
         let in_lobby = self.lobbies.iter()
             .any(|k| k.contains(id));
         let in_room = self.rooms.iter()
-            .filter(|k| k.is_none())
+            .filter(|k| k.is_some())
             .map(|k| k.unwrap())
             .any(|k| k.contains(id));
 
@@ -216,7 +216,7 @@ impl ClientLocation {
         self.err_if_client_is_in_area(id, CreateRoomError::ClientInAreaAlready)?;
         let (room_id, empty_room) = self.rooms.iter_mut()
             .enumerate()
-            .filter(|(_, k)| k.is_none())
+            .filter(|(_, k)| k.is_some())
             .nth(0)
             .ok_or(CreateRoomError::NoOpenSlots)?;
 
@@ -265,7 +265,7 @@ impl ClientLocation {
         }
 
         self.rooms.iter_mut()
-            .filter(|lobby| lobby.is_none())
+            .filter(|lobby| lobby.is_some())
             .map(|lobby| lobby.unwrap())
             .map(|mut lobby| lobby.remove(id))
             .any(|k| k);